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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.110 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
8 12
9#include <stddef.h> 13#include <stddef.h>
10#include <stdlib.h> 14#include <stdlib.h>
11#include <errno.h> 15#include <errno.h>
12#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
13#include <sys/stat.h> 18#include <sys/stat.h>
14#include <limits.h> 19#include <limits.h>
15#include <fcntl.h> 20#include <fcntl.h>
16#include <sched.h> 21#include <sched.h>
17 22
23#if HAVE_SYS_MKDEV_H
24# include <sys/mkdev.h>
25#elif HAVE_SYS_SYSMACROS_H
26# include <sys/sysmacros.h>
27#endif
28
29#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
30# include <sys/mman.h>
31#endif
32
33/* the incompetent fool that created musl keeps __linux__, refuses
34 * to implement any linux standard apis, and also has no way to test
35 * for his broken iplementation. don't complain to me if this fails
36 * for you.
37 */
38#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
39# include <linux/fs.h>
40# ifdef FS_IOC_FIEMAP
41# include <linux/types.h>
42# include <linux/fiemap.h>
43# define HAVE_FIEMAP 1
44# endif
45#endif
46
47/* perl namespace pollution */
48#undef VERSION
49
50/* perl stupidly overrides readdir and maybe others */
51/* with thread-unsafe versions, imagine that :( */
52#undef readdir
53#undef opendir
54#undef closedir
55
18#ifdef _WIN32 56#ifdef _WIN32
19 57
20# define SIGIO 0 58 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 59
22#undef malloc 60 #undef malloc
23#undef free 61 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 62 #undef open
27# undef read 63 #undef read
28# undef write 64 #undef write
29# undef send 65 #undef send
30# undef recv 66 #undef recv
31# undef stat 67 #undef stat
68 #undef lstat
32# undef fstat 69 #undef fstat
33# define lstat stat
34# undef truncate 70 #undef truncate
35# undef ftruncate 71 #undef ftruncate
36# undef open 72 #undef open
73 #undef link
37# undef close 74 #undef close
38# undef unlink 75 #undef unlink
76 #undef mkdir
39# undef rmdir 77 #undef rmdir
40# undef rename 78 #undef rename
41# undef lseek 79 #undef lseek
80 #undef opendir
81 #undef readdir
82 #undef closedir
83 #undef chmod
84 #undef fchmod
85 #undef dup
86 #undef dup2
87 #undef abort
88 #undef pipe
42 89
43# define chown(a,b,c) (errno = ENOSYS, -1) 90 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 91 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 92
57#else 93#else
58 94
59# include "autoconf/config.h"
60# include <sys/time.h> 95 #include <sys/time.h>
61# include <sys/select.h> 96 #include <sys/select.h>
62# include <unistd.h> 97 #include <unistd.h>
63# include <utime.h> 98 #include <utime.h>
64# include <signal.h> 99 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 100
67#endif 101 #define EIO_STRUCT_STAT Stat_t
68 102
69#if HAVE_SENDFILE 103#endif
70# if __linux 104
105/*****************************************************************************/
106
107#if __GNUC__ >= 3
108# define expect(expr,value) __builtin_expect ((expr),(value))
109#else
110# define expect(expr,value) (expr)
111#endif
112
113#define expect_false(expr) expect ((expr) != 0, 0)
114#define expect_true(expr) expect ((expr) != 0, 1)
115
116/*****************************************************************************/
117
118#include "config.h"
119
120#if HAVE_ST_XTIMENSEC
121# define ATIMENSEC PL_statcache.st_atimensec
122# define MTIMENSEC PL_statcache.st_mtimensec
123# define CTIMENSEC PL_statcache.st_ctimensec
124#elif HAVE_ST_XTIMESPEC
125# define ATIMENSEC PL_statcache.st_atim.tv_nsec
126# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
127# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
128#else
129# define ATIMENSEC 0
130# define MTIMENSEC 0
131# define CTIMENSEC 0
132#endif
133
134#include "schmorp.h"
135
136#if HAVE_EVENTFD
71# include <sys/sendfile.h> 137# include <sys/eventfd.h>
72# elif __freebsd 138#endif
73# include <sys/socket.h> 139
140#if HAVE_TIMERFD
74# include <sys/uio.h> 141# include <sys/timerfd.h>
75# elif __hpux 142#endif
143
144#if HAVE_RLIMITS
145 #include <sys/time.h>
76# include <sys/socket.h> 146 #include <sys/resource.h>
77# elif __solaris /* not yet */ 147#endif
78# include <sys/sendfile.h> 148
149typedef SV SV8; /* byte-sv, used for argument-checking */
150typedef int aio_rfd; /* read file desriptor */
151typedef int aio_wfd; /* write file descriptor */
152
153static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
154
155#define EIO_REQ_MEMBERS \
156 SV *callback; \
157 SV *sv1, *sv2; \
158 SV *sv3, *sv4; \
159 STRLEN stroffset; \
160 SV *self;
161
162#define EIO_NO_WRAPPERS 1
163
164#include "libeio/eio.h"
165
166static int req_invoke (eio_req *req);
167#define EIO_FINISH(req) req_invoke (req)
168static void req_destroy (eio_req *grp);
169#define EIO_DESTROY(req) req_destroy (req)
170
171#include "libeio/eio.c"
172
173#if !HAVE_POSIX_FADVISE
174# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
175#endif
176
177#if !HAVE_POSIX_MADVISE
178# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
179#endif
180
181#ifndef MAP_ANONYMOUS
182# ifdef MAP_ANON
183# define MAP_ANONYMOUS MAP_ANON
79# else 184# else
80# error sendfile support requested but not available 185# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 186# endif
82#endif 187#endif
83 188
84/* number of seconds after which idle threads exit */ 189#ifndef makedev
85#define IDLE_TIMEOUT 10 190# define makedev(maj,min) (((maj) << 8) | (min))
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif 191#endif
91 192#ifndef major
92/* buffer size for various temporary buffers */ 193# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 194#endif
195#ifndef minor
196# define minor(dev) ((dev) & 0xff)
197#endif
101 198
102static HV *stash; 199/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
200#ifdef __sun
201# undef PAGESIZE
202#endif
103 203
104#define dBUF \ 204#if PAGESIZE <= 0
105 char *aio_buf; \ 205# define PAGESIZE sysconf (_SC_PAGESIZE)
106 X_LOCK (wrklock); \ 206#endif
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 207
108 X_UNLOCK (wrklock); \ 208/*****************************************************************************/
109 if (!aio_buf) \ 209
210#if !_POSIX_MAPPED_FILES
211# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
212# define munmap(addr,length) EIO_ENOSYS ()
213#endif
214
215#if !_POSIX_MEMORY_PROTECTION
216# define mprotect(addr,len,prot) EIO_ENOSYS ()
217#endif
218
219#if !MREMAP_MAYMOVE
220# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
221#endif
222
223#define FOREIGN_MAGIC PERL_MAGIC_ext
224
225static int ecb_cold
226mmap_free (pTHX_ SV *sv, MAGIC *mg)
227{
228 int old_errno = errno;
229 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
230 errno = old_errno;
231
232 mg->mg_obj = 0; /* just in case */
233
234 SvREADONLY_off (sv);
235
236 if (SvPVX (sv) != mg->mg_ptr)
237 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
238
239 SvCUR_set (sv, 0);
240 SvPVX (sv) = 0;
241 SvOK_off (sv);
242
110 return -1; 243 return 0;
244}
111 245
112typedef SV SV8; /* byte-sv, used for argument-checking */ 246static MGVTBL mmap_vtbl = {
113 247 0, 0, 0, 0, mmap_free
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 248};
131 249
132#define AIO_REQ_KLASS "IO::AIO::REQ" 250static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 251sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 252{
137 struct aio_cb *volatile next; 253 free (mg->mg_ptr);
254 mg->mg_obj = 0; /* just in case */
138 255
139 SV *callback; 256 SvREADONLY_off (sv);
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146 257
147 STRLEN stroffset; 258 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 259 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 260
153 unsigned char flags; 261 SvCUR_set (sv, 0);
154 unsigned char pri; 262 SvPVX (sv) = 0;
263 SvOK_off (sv);
155 264
156 SV *self; /* the perl counterpart of this request, if any */ 265 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 266}
158} aio_cb;
159 267
160enum { 268static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 269 0, 0, 0, 0, sysfree_free
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164}; 270};
165 271
166typedef aio_cb *aio_req; 272/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 273
169enum { 274/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 275static void
171 PRI_MAX = 4, 276sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
172
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{ 277{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 278 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 279
190static thread_t main_tid; 280 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 281 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 282 ->mg_obj = (SV *)length;
193 283
194void block_sig () 284 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 285
198 if (block_sig_level++) 286 if (SvLEN (sv))
287 Safefree (SvPVX (sv));
288
289 SvPVX (sv) = (char *)addr;
290 SvCUR_set (sv, length);
291 SvLEN_set (sv, 0);
292 SvPOK_only (sv);
293}
294
295static void
296sv_clear_foreign (SV *sv)
297{
298 /* todo: iterate over magic and only free ours, but of course */
299 /* the perl5porters will call that (correct) behaviour buggy */
300 sv_unmagic (sv, FOREIGN_MAGIC);
301}
302
303/*****************************************************************************/
304
305/* defines all sorts of constants to 0 unless they are already defined */
306/* also provides const_iv_ and const_niv_ macros for them */
307#include "def0.h"
308
309/*****************************************************************************/
310
311static void
312fiemap (eio_req *req)
313{
314 req->result = -1;
315
316#if HAVE_FIEMAP
317 /* assume some c99 */
318 struct fiemap *fiemap = 0;
319 size_t end_offset;
320 int count = req->int3;
321
322 req->flags |= EIO_FLAG_PTR1_FREE;
323
324 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
325 /* increase in 3.5kb steps */
326 if (count < 0)
327 count = 8;
328
329 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
330 errno = ENOMEM;
331 if (!fiemap)
199 return; 332 return;
200 333
201 if (!main_sig) 334 req->ptr1 = fiemap;
335
336 fiemap->fm_start = req->offs;
337 fiemap->fm_length = req->size;
338 fiemap->fm_flags = req->int2;
339 fiemap->fm_extent_count = count;
340
341 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 342 return;
203 343
204 sigemptyset (&ss); 344 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 345 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 346 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 347 goto done;
208 348
209void unblock_sig () 349 /* else we have to loop -
210{ 350 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 351 * number of extents needed, but linux often feels like not returning all
352 * extents, without telling us it left any out. this complicates
353 * this quite a bit.
354 */
212 355
213 if (--block_sig_level) 356 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 357
216 if (!main_sig) 358 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 359 {
249 closedir (wrk->dirp); 360 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
250 wrk->dirp = 0; 361 char scratch[3072];
251 } 362 struct fiemap *incmap = (struct fiemap *)scratch;
252 363
253 if (wrk->dbuf) 364 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 365 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 366 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 367 incmap->fm_flags = fiemap->fm_flags;
257 } 368 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 369
260static void worker_free (worker *wrk) 370 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 371 return;
355 372
356 --q->size; 373 if (!incmap->fm_mapped_extents)
374 goto done;
357 375
358 for (pri = NUM_PRI; pri--; ) 376 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 377 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 378 errno = ENOMEM;
361
362 if (req) 379 if (!fiemap)
380 return;
381
382 req->ptr1 = fiemap;
383
384 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 385 {
364 if (!(q->qs[pri] = req->next)) 386 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 387
367 return req; 388 if (e->fe_logical + e->fe_length >= end_offset)
389 goto done;
390
391 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
392
393 if (e->fe_flags & FIEMAP_EXTENT_LAST)
394 goto done;
395
368 } 396 }
369 } 397 }
370 398
371 abort (); 399done:
372} 400 req->result = 0;
373 401
374static int poll_cb (); 402#else
375static int req_invoke (aio_req req); 403 errno = ENOSYS;
404#endif
405}
406
407/*****************************************************************************/
408
409enum {
410 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
411};
412
413typedef eio_req *aio_req;
414typedef eio_req *aio_req_ornot;
415typedef eio_wd aio_wd;
416
417static SV *on_next_submit;
418static int next_pri = EIO_PRI_DEFAULT;
419static int max_outstanding;
420
421static s_epipe respipe;
422
376static void req_destroy (aio_req req); 423static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 424static void req_cancel (aio_req req);
378 425
426static void
427want_poll (void)
428{
429 /* write a dummy byte to the pipe so fh becomes ready */
430 s_epipe_signal (&respipe);
431}
432
433static void
434done_poll (void)
435{
436 /* read any signals sent by the worker threads */
437 s_epipe_drain (&respipe);
438}
439
379/* must be called at most once */ 440/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 441static SV *
442req_sv (aio_req req, HV *stash)
381{ 443{
382 if (!req->self) 444 if (!req->self)
383 { 445 {
384 req->self = (SV *)newHV (); 446 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 447 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 448 }
387 449
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 450 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 451}
390 452
391static aio_req SvAIO_REQ (SV *sv) 453static SV *
454newSVaio_wd (aio_wd wd)
455{
456 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
457}
458
459static aio_req
460SvAIO_REQ (SV *sv)
392{ 461{
393 MAGIC *mg; 462 MAGIC *mg;
394 463
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 464 if (!SvROK (sv)
465 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
466 || (SvSTASH (SvRV (sv)) != aio_grp_stash
467 && SvSTASH (SvRV (sv)) != aio_req_stash
468 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 469 croak ("object of class IO::AIO::REQ expected");
397 470
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 471 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 472
400 return mg ? (aio_req)mg->mg_ptr : 0; 473 return mg ? (aio_req)mg->mg_ptr : 0;
401} 474}
402 475
476static aio_wd
477SvAIO_WD (SV *sv)
478{
479 if (!SvROK (sv)
480 || SvTYPE (SvRV (sv)) != SVt_PVMG
481 || SvSTASH (SvRV (sv)) != aio_wd_stash)
482 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
483
484 return (aio_wd)(long)SvIVX (SvRV (sv));
485}
486
487static SV *
488newmortalFH (int fd, int flags)
489{
490 if (fd < 0)
491 return &PL_sv_undef;
492
493 GV *gv = (GV *)sv_newmortal ();
494 char sym[64];
495 int symlen;
496
497 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
498 gv_init (gv, aio_stash, sym, symlen, 0);
499
500 symlen = snprintf (
501 sym,
502 sizeof (sym),
503 "%s&=%d",
504 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
505 fd
506 );
507
508 return do_open (gv, sym, symlen, 0, 0, 0, 0)
509 ? (SV *)gv : &PL_sv_undef;
510}
511
512static void
403static void aio_grp_feed (aio_req grp) 513aio_grp_feed (aio_req grp)
404{ 514{
405 block_sig (); 515 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 516 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 517 dSP;
414 518
415 ENTER; 519 ENTER;
416 SAVETMPS; 520 SAVETMPS;
417 PUSHMARK (SP); 521 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 522 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 523 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 524 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 525 SPAGAIN;
422 FREETMPS; 526 FREETMPS;
423 LEAVE; 527 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 528 }
434
435 unblock_sig ();
436} 529}
437 530
438static void aio_grp_dec (aio_req grp) 531static void
532req_submit (eio_req *req)
439{ 533{
440 --grp->size; 534 eio_submit (req);
441 535
442 /* call feeder, if applicable */ 536 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 537 {
448 block_sig (); 538 dSP;
539 SV *cb = sv_2mortal (on_next_submit);
449 540
450 if (!req_invoke (grp)) 541 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 542
457 req_destroy (grp); 543 PUSHMARK (SP);
458 unblock_sig (); 544 PUTBACK;
545 call_sv (cb, G_DISCARD | G_EVAL);
459 } 546 }
460} 547}
461 548
549static int
462static int req_invoke (aio_req req) 550req_invoke (eio_req *req)
463{ 551{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 552 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 553 SvREADONLY_off (req->sv2);
468 554
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 555 if (!EIO_CANCELLED (req) && req->callback)
470 { 556 {
557 dSP;
558 static SV *sv_result_cache; /* caches the result integer SV */
559 SV *sv_result;
560
471 ENTER; 561 ENTER;
472 SAVETMPS; 562 SAVETMPS;
473 PUSHMARK (SP); 563 PUSHMARK (SP);
474 EXTEND (SP, 1); 564 EXTEND (SP, 1);
475 565
566 /* do not recreate the result IV from scratch each time */
567 if (expect_true (sv_result_cache))
568 {
569 sv_result = sv_result_cache; sv_result_cache = 0;
570 SvIV_set (sv_result, req->result);
571 SvIOK_only (sv_result);
572 }
573 else
574 {
575 sv_result = newSViv (req->result);
576 SvREADONLY_on (sv_result);
577 }
578
476 switch (req->type) 579 switch (req->type)
477 { 580 {
581 case EIO_WD_OPEN:
582 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
583 break;
584
478 case REQ_READDIR: 585 case EIO_READDIR:
479 { 586 {
480 SV *rv = &PL_sv_undef; 587 SV *rv = &PL_sv_undef;
481 588
482 if (req->result >= 0) 589 if (req->result >= 0)
483 { 590 {
484 int i; 591 int i;
485 char *buf = req->ptr2; 592 char *names = (char *)req->ptr2;
593 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 594 AV *av = newAV ();
487 595
488 av_extend (av, req->result - 1); 596 av_extend (av, req->result - 1);
489 597
490 for (i = 0; i < req->result; ++i) 598 for (i = 0; i < req->result; ++i)
491 { 599 {
492 SV *sv = newSVpv (buf, 0); 600 if (req->int1 & EIO_READDIR_DENTS)
601 {
602 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 603
604 if (req->int1 & EIO_READDIR_CUSTOM2)
605 {
606 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
607 AV *avent = newAV ();
608
609 av_extend (avent, 2);
610
611 if (!sv_type [ent->type])
612 {
613 sv_type [ent->type] = newSViv (ent->type);
614 SvREADONLY_on (sv_type [ent->type]);
615 }
616
617 av_store (avent, 0, namesv);
618 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
619 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
620
621 av_store (av, i, newRV_noinc ((SV *)avent));
622 }
623 else
494 av_store (av, i, sv); 624 av_store (av, i, namesv);
625
626 ++ent;
627 }
628 else
629 {
630 SV *name = newSVpv (names, 0);
631 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 632 names += SvCUR (name) + 1;
633 }
496 } 634 }
497 635
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 636 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 637 }
500 638
501 PUSHs (rv); 639 PUSHs (rv);
640
641 if (req->int1 & EIO_READDIR_CUSTOM1)
642 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 643 }
503 break; 644 break;
504 645
505 case REQ_OPEN: 646 case EIO_OPEN:
647 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
648 break;
649
650 case EIO_STATVFS:
651 case EIO_FSTATVFS:
506 { 652 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 653 SV *rv = &PL_sv_undef;
509 654
655#ifndef _WIN32
510 if (req->result >= 0) 656 if (req->result >= 0)
511 { 657 {
658 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 659 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 660 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 661 * chooses to make it a struct.
515 int symlen;
516 662 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 663 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 664 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 665
520 symlen = snprintf ( 666 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 667
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 668 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 669 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
670 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
671 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
672 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
673 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
674 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
675 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
676 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
677 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
678 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 679 }
680#endif
531 681
532 PUSHs (fh); 682 PUSHs (rv);
533 } 683 }
684
534 break; 685 break;
535 686
536 case REQ_GROUP: 687 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 688 req->int1 = 2; /* mark group as finished */
538 689
539 if (req->sv1) 690 if (req->sv1)
540 { 691 {
541 int i; 692 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 696 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 697 PUSHs (*av_fetch (av, i, 0));
547 } 698 }
548 break; 699 break;
549 700
550 case REQ_NOP: 701 case EIO_NOP:
551 case REQ_BUSY: 702 case EIO_BUSY:
552 break; 703 break;
553 704
554 case REQ_READLINK: 705 case EIO_READLINK:
706 case EIO_REALPATH:
555 if (req->result > 0) 707 if (req->result > 0)
708 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
709 break;
710
711 case EIO_STAT:
712 case EIO_LSTAT:
713 case EIO_FSTAT:
714 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
715
716 if (!(PL_laststatval = req->result))
717 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
718 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
719
720 PUSHs (sv_result);
721 break;
722
723 case EIO_SEEK:
724 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
725 break;
726
727 case EIO_READ:
728 {
729 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
730 *SvEND (req->sv2) = 0;
731 SvPOK_only (req->sv2);
732 SvSETMAGIC (req->sv2);
733 PUSHs (sv_result);
734 }
735 break;
736
737 case EIO_SLURP:
738 {
739 if (req->result >= 0)
740 {
741 /* if length was originally not known, we steal the malloc'ed memory */
742 if (req->flags & EIO_FLAG_PTR2_FREE)
743 {
744 req->flags &= ~EIO_FLAG_PTR2_FREE;
745 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
746 }
747 else
748 {
749 SvCUR_set (req->sv2, req->result);
750 *SvEND (req->sv2) = 0;
751 SvPOK_only (req->sv2);
752 }
753
754 SvSETMAGIC (req->sv2);
755 }
756
757 PUSHs (sv_result);
758 }
759 break;
760
761 case EIO_CUSTOM:
762 if (req->feed == fiemap)
556 { 763 {
557 SvCUR_set (req->sv2, req->result); 764#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 765 if (!req->result)
766 {
767 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
768
769 if (fiemap->fm_extent_count)
770 {
771 AV *av = newAV ();
772 int i;
773
774 while (fiemap->fm_mapped_extents)
775 {
776 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
777 AV *ext_av = newAV ();
778
779 av_store (ext_av, 3, newSVuv (extent->fe_flags));
780 av_store (ext_av, 2, newSVval64 (extent->fe_length));
781 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
782 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
783
784 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
785 }
786
787 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
788 }
789 else
790 {
791 SvIV_set (sv_result, fiemap->fm_mapped_extents);
792 PUSHs (sv_result);
793 }
794 }
795#endif
560 } 796 }
797 else
798 PUSHs (sv_result);
561 break; 799 break;
562 800
563 case REQ_STAT: 801 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 802 if (req->result > 0)
565 case REQ_FSTAT: 803 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 804 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 805
578 default: 806 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 807 PUSHs (sv_result);
580 break; 808 break;
581 } 809 }
582 810
583 errno = req->errorno; 811 errno = req->errorno;
584 812
585 PUTBACK; 813 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 814 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 815 SPAGAIN;
588 816
817 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
818 SvREFCNT_dec (sv_result);
819 else
820 sv_result_cache = sv_result;
821
589 FREETMPS; 822 FREETMPS;
590 LEAVE; 823 LEAVE;
591 824
592 PUTBACK; 825 PUTBACK;
593 } 826 }
594 827
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 828 return !!SvTRUE (ERRSV);
610} 829}
611 830
831static void
612static void req_destroy (aio_req req) 832req_destroy (aio_req req)
613{ 833{
614 if (req->self) 834 if (req->self)
615 { 835 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 836 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 837 SvREFCNT_dec (req->self);
618 } 838 }
619 839
620 SvREFCNT_dec (req->sv1); 840 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 841 SvREFCNT_dec (req->sv2);
842 SvREFCNT_dec (req->sv3);
843 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 844 SvREFCNT_dec (req->callback);
623 845
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 846 free (req);
628} 847}
629 848
849static void
630static void req_cancel_subs (aio_req grp) 850req_cancel_subs (aio_req grp)
631{ 851{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 852 if (grp->type != EIO_GROUP)
635 return; 853 return;
636 854
637 SvREFCNT_dec (grp->sv2); 855 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 856 grp->sv2 = 0;
639 857
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 858 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 859}
643 860
644static void req_cancel (aio_req req) 861static void ecb_cold
862create_respipe (void)
645{ 863{
646 req->flags |= FLAG_CANCELLED; 864 if (s_epipe_renew (&respipe))
647 865 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 866}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 867
657static void 868static void
658create_respipe () 869poll_wait (void)
659{ 870{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread ()
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait ()
791{
792 fd_set rfd;
793
794 while (nreqs) 871 while (eio_nreqs ())
795 { 872 {
796 int size; 873 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 874
875 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 876 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 877 X_UNLOCK (EIO_POOL->reslock);
800 878
801 if (size) 879 if (size)
802 return; 880 return;
803 881
804 maybe_start_thread (); 882 etp_maybe_start_thread (EIO_POOL);
805 883
806 FD_ZERO (&rfd); 884 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 885 }
811} 886}
812 887
813static int poll_cb () 888static int
889poll_cb (void)
814{ 890{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 891 for (;;)
828 { 892 {
829 for (;;) 893 int res = eio_poll ();
894
895 if (res > 0)
896 croak (0);
897
898 if (!max_outstanding || max_outstanding > eio_nreqs ())
899 return res;
900
901 poll_wait ();
902 }
903}
904
905static void ecb_cold
906reinit (void)
907{
908 create_respipe ();
909
910 if (eio_init (want_poll, done_poll) < 0)
911 croak ("IO::AIO: unable to initialise eio library");
912}
913
914/*****************************************************************************/
915
916static SV *
917get_cb (SV *cb_sv)
918{
919 SvGETMAGIC (cb_sv);
920 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
921}
922
923static aio_req ecb_noinline
924dreq (SV *callback)
925{
926 SV *cb_cv;
927 aio_req req;
928 int req_pri = next_pri;
929 next_pri = EIO_PRI_DEFAULT;
930
931 cb_cv = get_cb (callback);
932
933 req = calloc (sizeof (*req), 1);
934 if (!req)
935 croak ("out of memory during eio_req allocation");
936
937 req->callback = SvREFCNT_inc (cb_cv);
938 req->pri = req_pri;
939
940 return req;
941}
942
943#define dREQ \
944 aio_req req = dreq (callback); \
945
946#define REQ_SEND \
947 PUTBACK; \
948 req_submit (req); \
949 SPAGAIN; \
950 \
951 if (GIMME_V != G_VOID) \
952 XPUSHs (req_sv (req, aio_req_stash));
953
954ecb_inline void
955req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
956{
957 if (expect_false (SvROK (path)))
958 {
959 SV *rv = SvRV (path);
960 SV *wdob;
961
962 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 963 {
831 maybe_start_thread (); 964 path = AvARRAY (rv)[1];
965 wdob = AvARRAY (rv)[0];
832 966
833 X_LOCK (reslock); 967 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 968 {
838 --npending; 969 *wd = SvAIO_WD (wdob);
839 970 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 971 }
861 else 972 else
862 { 973 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 974 }
975 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
976 {
977 *wd = (aio_wd)(long)SvIVX (rv);
978 *wdsv = SvREFCNT_inc_NN (rv);
979 *ptr = ".";
980 return; /* path set to "." */
981 }
982 else
983 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
984 }
886 985
887 if (nreqs <= max_outstanding) 986 *pathsv = newSVsv (path);
987 *ptr = SvPVbyte_nolen (*pathsv);
988}
989
990static void ecb_noinline
991req_set_path1 (aio_req req, SV *path)
992{
993 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
994}
995
996static void ecb_noinline
997req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
998{
999 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1000
1001 switch (SvTYPE (rv))
1002 {
1003 case SVt_PVIO:
1004 case SVt_PVLV:
1005 case SVt_PVGV:
1006 req->type = type_fh;
1007 req->sv1 = newSVsv (fh_or_path);
1008 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 1009 break;
889 1010
890 poll_wait (); 1011 default:
891 1012 req->type = type_path;
892 ++maxreqs; 1013 req_set_path1 (req, fh_or_path);
1014 break;
893 } 1015 }
894
895 unblock_sig ();
896 return count;
897} 1016}
898 1017
899/*****************************************************************************/ 1018/*****************************************************************************/
900/* work around various missing functions */
901 1019
902#if !HAVE_PREADWRITE 1020static void
903# define pread aio_pread 1021ts_set (struct timespec *ts, NV value)
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{ 1022{
915 ssize_t res; 1023 ts->tv_sec = value;
916 off_t ooffset; 1024 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926} 1025}
927 1026
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1027static NV
1028ts_get (const struct timespec *ts)
929{ 1029{
930 ssize_t res; 1030 return ts->tv_sec + ts->tv_nsec * 1e-9;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181} 1031}
1182 1032
1183/*****************************************************************************/ 1033/*****************************************************************************/
1184 1034
1185X_THREAD_PROC (aio_proc) 1035XS(boot_IO__AIO) ecb_cold;
1186{
1187 {//D
1188 aio_req req;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191 1036
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_SYNC: req->result = 0; sync (); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1275
1276 case REQ_READDIR: scandir_ (req, self); break;
1277
1278 case REQ_BUSY:
1279#ifdef _WIN32
1280 Sleep (req->nv1 * 1000.);
1281#else
1282 {
1283 struct timeval tv;
1284
1285 tv.tv_sec = req->nv1;
1286 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1287
1288 req->result = select (0, 0, 0, 0, &tv);
1289 }
1290#endif
1291 break;
1292
1293 case REQ_UTIME:
1294 case REQ_FUTIME:
1295 {
1296 struct timeval tv[2];
1297 struct timeval *times;
1298
1299 if (req->nv1 != -1. || req->nv2 != -1.)
1300 {
1301 tv[0].tv_sec = req->nv1;
1302 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1303 tv[1].tv_sec = req->nv2;
1304 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1305
1306 times = tv;
1307 }
1308 else
1309 times = 0;
1310
1311
1312 req->result = req->type == REQ_FUTIME
1313 ? futimes (req->int1, times)
1314 : utimes (req->ptr1, times);
1315 }
1316
1317 case REQ_GROUP:
1318 case REQ_NOP:
1319 break;
1320
1321 case REQ_QUIT:
1322 goto quit;
1323
1324 default:
1325 req->result = -1;
1326 break;
1327 }
1328
1329 req->errorno = errno;
1330
1331 X_LOCK (reslock);
1332
1333 ++npending;
1334
1335 if (!reqq_push (&res_queue, req))
1336 {
1337 /* write a dummy byte to the pipe so fh becomes ready */
1338 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1339
1340 /* optionally signal the main thread asynchronously */
1341 if (main_sig)
1342 pthread_kill (main_tid, main_sig);
1343 }
1344
1345 self->req = 0;
1346 worker_clear (self);
1347
1348 X_UNLOCK (reslock);
1349 }
1350
1351quit:
1352 X_LOCK (wrklock);
1353 worker_free (self);
1354 X_UNLOCK (wrklock);
1355
1356 return 0;
1357 }//D
1358}
1359
1360/*****************************************************************************/
1361
1362static void atfork_prepare (void)
1363{
1364 X_LOCK (wrklock);
1365 X_LOCK (reqlock);
1366 X_LOCK (reslock);
1367#if !HAVE_PREADWRITE
1368 X_LOCK (preadwritelock);
1369#endif
1370#if !HAVE_READDIR_R
1371 X_LOCK (readdirlock);
1372#endif
1373}
1374
1375static void atfork_parent (void)
1376{
1377#if !HAVE_READDIR_R
1378 X_UNLOCK (readdirlock);
1379#endif
1380#if !HAVE_PREADWRITE
1381 X_UNLOCK (preadwritelock);
1382#endif
1383 X_UNLOCK (reslock);
1384 X_UNLOCK (reqlock);
1385 X_UNLOCK (wrklock);
1386}
1387
1388static void atfork_child (void)
1389{
1390 aio_req prv;
1391
1392 while (prv = reqq_shift (&req_queue))
1393 req_destroy (prv);
1394
1395 while (prv = reqq_shift (&res_queue))
1396 req_destroy (prv);
1397
1398 while (wrk_first.next != &wrk_first)
1399 {
1400 worker *wrk = wrk_first.next;
1401
1402 if (wrk->req)
1403 req_destroy (wrk->req);
1404
1405 worker_clear (wrk);
1406 worker_free (wrk);
1407 }
1408
1409 started = 0;
1410 idle = 0;
1411 nreqs = 0;
1412 nready = 0;
1413 npending = 0;
1414
1415 create_respipe ();
1416
1417 atfork_parent ();
1418}
1419
1420#define dREQ \
1421 aio_req req; \
1422 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \
1424 \
1425 if (SvOK (callback) && !SvROK (callback)) \
1426 croak ("callback must be undef or of reference type"); \
1427 \
1428 Newz (0, req, 1, aio_cb); \
1429 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \
1431 \
1432 req->callback = newSVsv (callback); \
1433 req->pri = req_pri
1434
1435#define REQ_SEND \
1436 req_send (req); \
1437 \
1438 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1440
1441MODULE = IO::AIO PACKAGE = IO::AIO 1037MODULE = IO::AIO PACKAGE = IO::AIO
1442 1038
1443PROTOTYPES: ENABLE 1039PROTOTYPES: ENABLE
1444 1040
1445BOOT: 1041BOOT:
1446{ 1042{
1043 static const struct {
1044 const char *name;
1045 IV iv;
1046 } *civ, const_iv[] = {
1047# define const_niv(name, value) { # name, (IV) value },
1048# define const_iv(name) { # name, (IV) name },
1049# define const_eio(name) { # name, (IV) EIO_ ## name },
1050
1051 /* you have to re-run ./gendef0 after adding/removing any constants here */
1052 /* the first block can be undef if missing */
1053 const_iv (ENOSYS)
1054 const_iv (EXDEV)
1055 const_iv (EBADR)
1056
1057 /* for lseek */
1058 const_iv (SEEK_DATA)
1059 const_iv (SEEK_HOLE)
1060
1061 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1062 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1063 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1064 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1065 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1066 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1067
1068 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1069 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1070 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1071 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1072 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1073
1074 /* the second block will be 0 when missing */
1075 const_iv (O_ACCMODE)
1076
1077 const_iv (O_RDONLY)
1078 const_iv (O_WRONLY)
1079 const_iv (O_RDWR)
1080 const_iv (O_CREAT)
1081 const_iv (O_TRUNC)
1082 const_iv (O_EXCL)
1083 const_iv (O_APPEND)
1084
1085 const_iv (O_ASYNC)
1086 const_iv (O_DIRECT)
1087 const_iv (O_NOATIME)
1088
1089 const_iv (O_CLOEXEC)
1090 const_iv (O_NOCTTY)
1091 const_iv (O_NOFOLLOW)
1092 const_iv (O_NONBLOCK)
1093 const_iv (O_EXEC)
1094 const_iv (O_SEARCH)
1095 const_iv (O_DIRECTORY)
1096 const_iv (O_DSYNC)
1097 const_iv (O_RSYNC)
1098 const_iv (O_SYNC)
1099 const_iv (O_PATH)
1100 const_iv (O_TMPFILE)
1101 const_iv (O_TTY_INIT)
1102
1103 const_iv (S_IFIFO)
1104 const_iv (S_IFCHR)
1105 const_iv (S_IFBLK)
1106 const_iv (S_IFLNK)
1107 const_iv (S_IFREG)
1108 const_iv (S_IFDIR)
1109 const_iv (S_IFWHT)
1110 const_iv (S_IFSOCK)
1111 const_iv (S_IFMT)
1112
1113 const_iv (ST_RDONLY)
1114 const_iv (ST_NOSUID)
1115 const_iv (ST_NODEV)
1116 const_iv (ST_NOEXEC)
1117 const_iv (ST_SYNCHRONOUS)
1118 const_iv (ST_MANDLOCK)
1119 const_iv (ST_WRITE)
1120 const_iv (ST_APPEND)
1121 const_iv (ST_IMMUTABLE)
1122 const_iv (ST_NOATIME)
1123 const_iv (ST_NODIRATIME)
1124 const_iv (ST_RELATIME)
1125
1126 const_iv (PROT_NONE)
1127 const_iv (PROT_EXEC)
1128 const_iv (PROT_READ)
1129 const_iv (PROT_WRITE)
1130
1131 const_iv (MAP_PRIVATE)
1132 const_iv (MAP_SHARED)
1133 const_iv (MAP_FIXED)
1134 const_iv (MAP_ANONYMOUS)
1135
1136 /* linuxish */
1137 const_iv (MAP_LOCKED)
1138 const_iv (MAP_NORESERVE)
1139 const_iv (MAP_POPULATE)
1140 const_iv (MAP_NONBLOCK)
1141 const_iv (MAP_GROWSDOWN)
1142 const_iv (MAP_32BIT)
1143 const_iv (MAP_HUGETLB)
1144 const_iv (MAP_STACK)
1145
1146 const_iv (MREMAP_MAYMOVE)
1147 const_iv (MREMAP_FIXED)
1148
1149 const_iv (F_DUPFD_CLOEXEC)
1150
1151 const_iv (MSG_CMSG_CLOEXEC)
1152 const_iv (SOCK_CLOEXEC)
1153
1154 const_iv (F_OFD_GETLK)
1155 const_iv (F_OFD_SETLK)
1156 const_iv (F_OFD_GETLKW)
1157
1158 const_iv (FIFREEZE)
1159 const_iv (FITHAW)
1160 const_iv (FITRIM)
1161 const_iv (FICLONE)
1162 const_iv (FICLONERANGE)
1163 const_iv (FIDEDUPERANGE)
1164
1165 const_iv (FS_IOC_GETFLAGS)
1166 const_iv (FS_IOC_SETFLAGS)
1167 const_iv (FS_IOC_GETVERSION)
1168 const_iv (FS_IOC_SETVERSION)
1169 const_iv (FS_IOC_FIEMAP)
1170 const_iv (FS_IOC_FSGETXATTR)
1171 const_iv (FS_IOC_FSSETXATTR)
1172 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1173 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1174 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1175
1176 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1177
1178 const_iv (FS_SECRM_FL)
1179 const_iv (FS_UNRM_FL)
1180 const_iv (FS_COMPR_FL)
1181 const_iv (FS_SYNC_FL)
1182 const_iv (FS_IMMUTABLE_FL)
1183 const_iv (FS_APPEND_FL)
1184 const_iv (FS_NODUMP_FL)
1185 const_iv (FS_NOATIME_FL)
1186 const_iv (FS_DIRTY_FL)
1187 const_iv (FS_COMPRBLK_FL)
1188 const_iv (FS_NOCOMP_FL)
1189 const_iv (FS_ENCRYPT_FL)
1190 const_iv (FS_BTREE_FL)
1191 const_iv (FS_INDEX_FL)
1192 const_iv (FS_JOURNAL_DATA_FL)
1193 const_iv (FS_NOTAIL_FL)
1194 const_iv (FS_DIRSYNC_FL)
1195 const_iv (FS_TOPDIR_FL)
1196 const_iv (FS_FL_USER_MODIFIABLE)
1197
1198 const_iv (FS_XFLAG_REALTIME)
1199 const_iv (FS_XFLAG_PREALLOC)
1200 const_iv (FS_XFLAG_IMMUTABLE)
1201 const_iv (FS_XFLAG_APPEND)
1202 const_iv (FS_XFLAG_SYNC)
1203 const_iv (FS_XFLAG_NOATIME)
1204 const_iv (FS_XFLAG_NODUMP)
1205 const_iv (FS_XFLAG_RTINHERIT)
1206 const_iv (FS_XFLAG_PROJINHERIT)
1207 const_iv (FS_XFLAG_NOSYMLINKS)
1208 const_iv (FS_XFLAG_EXTSIZE)
1209 const_iv (FS_XFLAG_EXTSZINHERIT)
1210 const_iv (FS_XFLAG_NODEFRAG)
1211 const_iv (FS_XFLAG_FILESTREAM)
1212 const_iv (FS_XFLAG_DAX)
1213 const_iv (FS_XFLAG_HASATTR)
1214
1215 const_iv (FIEMAP_FLAG_SYNC)
1216 const_iv (FIEMAP_FLAG_XATTR)
1217 const_iv (FIEMAP_FLAGS_COMPAT)
1218 const_iv (FIEMAP_EXTENT_LAST)
1219 const_iv (FIEMAP_EXTENT_UNKNOWN)
1220 const_iv (FIEMAP_EXTENT_DELALLOC)
1221 const_iv (FIEMAP_EXTENT_ENCODED)
1222 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1223 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1224 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1225 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1226 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1227 const_iv (FIEMAP_EXTENT_MERGED)
1228 const_iv (FIEMAP_EXTENT_SHARED)
1229
1230 const_iv (SPLICE_F_MOVE)
1231 const_iv (SPLICE_F_NONBLOCK)
1232 const_iv (SPLICE_F_MORE)
1233 const_iv (SPLICE_F_GIFT)
1234
1235 const_iv (EFD_CLOEXEC)
1236 const_iv (EFD_NONBLOCK)
1237 const_iv (EFD_SEMAPHORE)
1238
1239 const_iv (CLOCK_REALTIME)
1240 const_iv (CLOCK_MONOTONIC)
1241 const_iv (CLOCK_BOOTTIME)
1242 const_iv (CLOCK_REALTIME_ALARM)
1243 const_iv (CLOCK_BOOTTIME_ALARM)
1244
1245 const_iv (TFD_NONBLOCK)
1246 const_iv (TFD_CLOEXEC)
1247
1248 const_iv (TFD_TIMER_ABSTIME)
1249 const_iv (TFD_TIMER_CANCEL_ON_SET)
1250
1251 /* these are libeio constants, and are independent of gendef0 */
1252 const_eio (SEEK_SET)
1253 const_eio (SEEK_CUR)
1254 const_eio (SEEK_END)
1255
1256 const_eio (MCL_FUTURE)
1257 const_eio (MCL_CURRENT)
1258
1259 const_eio (MS_ASYNC)
1260 const_eio (MS_INVALIDATE)
1261 const_eio (MS_SYNC)
1262
1263 const_eio (MT_MODIFY)
1264
1265 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1266 const_eio (SYNC_FILE_RANGE_WRITE)
1267 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1268
1269 const_eio (FALLOC_FL_KEEP_SIZE)
1270 const_eio (FALLOC_FL_PUNCH_HOLE)
1271 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1272 const_eio (FALLOC_FL_ZERO_RANGE)
1273 const_eio (FALLOC_FL_INSERT_RANGE)
1274 const_eio (FALLOC_FL_UNSHARE_RANGE)
1275
1276 const_eio (RENAME_NOREPLACE)
1277 const_eio (RENAME_EXCHANGE)
1278 const_eio (RENAME_WHITEOUT)
1279
1280 const_eio (READDIR_DENTS)
1281 const_eio (READDIR_DIRS_FIRST)
1282 const_eio (READDIR_STAT_ORDER)
1283 const_eio (READDIR_FOUND_UNKNOWN)
1284
1285 const_eio (DT_UNKNOWN)
1286 const_eio (DT_FIFO)
1287 const_eio (DT_CHR)
1288 const_eio (DT_DIR)
1289 const_eio (DT_BLK)
1290 const_eio (DT_REG)
1291 const_eio (DT_LNK)
1292 const_eio (DT_SOCK)
1293 const_eio (DT_WHT)
1294 };
1295
1447 stash = gv_stashpv ("IO::AIO", 1); 1296 aio_stash = gv_stashpv ("IO::AIO" , 1);
1297 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1298 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1299 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1448 1300
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1301 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1302 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1451 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1452 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1453 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1454#ifdef _WIN32
1455 X_MUTEX_CHECK (wrklock);
1456 X_MUTEX_CHECK (reslock);
1457 X_MUTEX_CHECK (reqlock);
1458 X_MUTEX_CHECK (reqwait);
1459 X_MUTEX_CHECK (preadwritelock);
1460 X_MUTEX_CHECK (readdirlock);
1461 1303
1462 X_COND_CHECK (reqwait); 1304 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1463#else
1464 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1465 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1466#endif
1467 1305
1468 create_respipe (); 1306 reinit ();
1469
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1471} 1307}
1472 1308
1473void 1309void
1310reinit ()
1311 PROTOTYPE:
1312
1313void
1474max_poll_reqs (int nreqs) 1314max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 1315 PROTOTYPE: $
1476 CODE: 1316 CODE:
1477 max_poll_reqs = nreqs; 1317 eio_set_max_poll_reqs (nreqs);
1478 1318
1479void 1319void
1480max_poll_time (double nseconds) 1320max_poll_time (double nseconds)
1481 PROTOTYPE: $ 1321 PROTOTYPE: $
1482 CODE: 1322 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 1323 eio_set_max_poll_time (nseconds);
1484 1324
1485void 1325void
1486min_parallel (int nthreads) 1326min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 1327 PROTOTYPE: $
1496 CODE: 1328 CODE:
1497 set_max_idle (nthreads); 1329 eio_set_min_parallel (nthreads);
1498 1330
1499int 1331void
1500max_outstanding (int maxreqs) 1332max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 1333 PROTOTYPE: $
1502 CODE: 1334 CODE:
1503 RETVAL = max_outstanding; 1335 eio_set_max_parallel (nthreads);
1336
1337void
1338max_idle (unsigned int nthreads)
1339 PROTOTYPE: $
1340 CODE:
1341 eio_set_max_idle (nthreads);
1342
1343void
1344idle_timeout (unsigned int seconds)
1345 PROTOTYPE: $
1346 CODE:
1347 eio_set_idle_timeout (seconds);
1348
1349void
1350max_outstanding (unsigned int maxreqs)
1351 PROTOTYPE: $
1352 CODE:
1504 max_outstanding = maxreqs; 1353 max_outstanding = maxreqs;
1505 OUTPUT:
1506 RETVAL
1507 1354
1508void 1355void
1509aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1356aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 1357 PPCODE:
1512{ 1358{
1513 dREQ; 1359 dREQ;
1514 1360
1361 req->type = EIO_WD_OPEN;
1362 req_set_path1 (req, pathname);
1363
1364 REQ_SEND;
1365}
1366
1367void
1368aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1515 req->type = REQ_OPEN; 1373 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 1374 req_set_path1 (req, pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 1375 req->int1 = flags;
1519 req->mode = mode; 1376 req->int2 = mode;
1520 1377
1521 REQ_SEND; 1378 REQ_SEND;
1522} 1379}
1523 1380
1524void 1381void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1382aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 1383 ALIAS:
1528 aio_fsync = REQ_FSYNC 1384 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 1385 aio_fdatasync = EIO_FDATASYNC
1386 aio_syncfs = EIO_SYNCFS
1530 PPCODE: 1387 PPCODE:
1531{ 1388{
1389 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 1390 dREQ;
1533 1391
1534 req->type = ix; 1392 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1393 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1394 req->int1 = fd;
1537 1395
1538 REQ_SEND (req); 1396 REQ_SEND;
1539} 1397}
1540 1398
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1399void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1400aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1401 PPCODE:
1553{ 1402{
1403 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1404 dREQ;
1555 1405
1556 req->type = REQ_CLOSE; 1406 req->type = EIO_SYNC_FILE_RANGE;
1407 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 1408 req->int1 = fd;
1409 req->offs = offset;
1410 req->size = nbytes;
1411 req->int2 = flags;
1558 1412
1559 REQ_SEND (req); 1413 REQ_SEND;
1560} 1414}
1561 1415
1562void 1416void
1417aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1418 PPCODE:
1419{
1420 int fd = s_fileno_croak (fh, 0);
1421 dREQ;
1422
1423 req->type = EIO_FALLOCATE;
1424 req->sv1 = newSVsv (fh);
1425 req->int1 = fd;
1426 req->int2 = mode;
1427 req->offs = offset;
1428 req->size = len;
1429
1430 REQ_SEND;
1431}
1432
1433void
1434aio_close (SV *fh, SV *callback = &PL_sv_undef)
1435 PPCODE:
1436{
1437 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1438 int fd = s_fileno_croak (fh, 0);
1439 dREQ;
1440
1441 if (expect_false (close_fd < 0))
1442 {
1443 int pipefd [2];
1444
1445 if (
1446#ifdef _WIN32
1447 _pipe (pipefd, 1, _O_BINARY) < 0
1448#else
1449 pipe (pipefd) < 0
1450 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1451#endif
1452 || close (pipefd [1]) < 0
1453 )
1454 abort (); /*D*/
1455
1456 close_fd = pipefd [0];
1457 }
1458
1459 req->type = EIO_DUP2;
1460 req->int1 = close_fd;
1461 req->sv2 = newSVsv (fh);
1462 req->int2 = fd;
1463
1464 REQ_SEND;
1465}
1466
1467void
1468aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1469 PPCODE:
1470{
1471 int fd = s_fileno_croak (fh, 0);
1472 dREQ;
1473
1474 req->type = EIO_SEEK;
1475 req->sv1 = newSVsv (fh);
1476 req->int1 = fd;
1477 req->offs = SvVAL64 (offset);
1478 req->int2 = whence;
1479
1480 REQ_SEND;
1481}
1482
1483void
1563aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1484aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1564 ALIAS: 1485 ALIAS:
1565 aio_read = REQ_READ 1486 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1487 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1488 PPCODE:
1569{ 1489{
1570 STRLEN svlen; 1490 STRLEN svlen;
1491 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1492 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1493 UV len = SvUV (length);
1573 1494
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1495 if (dataoffset < 0)
1578 dataoffset += svlen; 1496 dataoffset += svlen;
1579 1497
1580 if (dataoffset < 0 || dataoffset > svlen) 1498 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1499 croak ("dataoffset outside of data scalar");
1582 1500
1583 if (ix == REQ_WRITE) 1501 if (ix == EIO_WRITE)
1584 { 1502 {
1585 /* write: check length and adjust. */ 1503 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1504 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1505 len = svlen - dataoffset;
1588 } 1506 }
1589 else 1507 else
1590 { 1508 {
1591 /* read: grow scalar as necessary */ 1509 /* read: check type and grow scalar as necessary */
1510 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1592 svptr = SvGROW (data, len + dataoffset + 1); 1511 svptr = sv_grow (data, len + dataoffset + 1);
1512 else if (SvCUR (data) < len + dataoffset)
1513 croak ("length + dataoffset outside of scalar, and cannot grow");
1593 } 1514 }
1594
1595 if (len < 0)
1596 croak ("length must not be negative");
1597 1515
1598 { 1516 {
1599 dREQ; 1517 dREQ;
1600 1518
1601 req->type = ix; 1519 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1520 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1521 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1522 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1523 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1524 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1525 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1526 req->stroffset = dataoffset;
1610 1527
1611 if (!SvREADONLY (data)) 1528 if (!SvREADONLY (data))
1612 { 1529 {
1613 SvREADONLY_on (data); 1530 SvREADONLY_on (data);
… …
1617 REQ_SEND; 1534 REQ_SEND;
1618 } 1535 }
1619} 1536}
1620 1537
1621void 1538void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1539aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1623 PROTOTYPE: $$;$ 1540 ALIAS:
1541 aio_ioctl = EIO_IOCTL
1542 aio_fcntl = EIO_FCNTL
1624 PPCODE: 1543 PPCODE:
1625{ 1544{
1626 SV *data; 1545 int fd = s_fileno_croak (fh, 0);
1627 dREQ; 1546 char *svptr;
1628 1547
1629 data = newSV (NAME_MAX); 1548 if (SvPOK (arg) || !SvNIOK (arg))
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK;
1633 req->sv1 = newSVsv (path);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637
1638 REQ_SEND;
1639}
1640
1641void
1642aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1643 PROTOTYPE: $$$$;$
1644 PPCODE:
1645{
1646 dREQ;
1647
1648 req->type = REQ_SENDFILE;
1649 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1651 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1653 req->offs = SvVAL64 (in_offset);
1654 req->size = length;
1655
1656 REQ_SEND;
1657}
1658
1659void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE:
1663{
1664 dREQ;
1665
1666 req->type = REQ_READAHEAD;
1667 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1669 req->offs = SvVAL64 (offset);
1670 req->size = length;
1671
1672 REQ_SEND;
1673}
1674
1675void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS:
1678 aio_stat = REQ_STAT
1679 aio_lstat = REQ_LSTAT
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->ptr2 = malloc (sizeof (Stat_t));
1685 if (!req->ptr2)
1686 { 1549 {
1687 req_destroy (req); 1550 STRLEN svlen;
1688 croak ("out of memory during aio_stat statdata allocation"); 1551 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1689 } 1552#ifdef IOCPARM_LEN
1553 STRLEN need = IOCPARM_LEN (request);
1554#else
1555 STRLEN need = 256;
1556#endif
1690 1557
1691 req->flags |= FLAG_PTR2_FREE; 1558 if (svlen < need)
1692 req->sv1 = newSVsv (fh_or_path); 1559 svptr = SvGROW (arg, need);
1693
1694 if (SvPOK (fh_or_path))
1695 {
1696 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 } 1560 }
1699 else 1561 else
1562 svptr = (char *)SvIV (arg);
1563
1700 { 1564 {
1565 dREQ;
1566
1701 req->type = REQ_FSTAT; 1567 req->type = ix;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1568 req->sv1 = newSVsv (fh);
1569 req->int1 = fd;
1570 req->int2 = (long)request;
1571 req->sv2 = SvREFCNT_inc (arg);
1572 req->ptr2 = svptr;
1573
1574 REQ_SEND;
1703 } 1575 }
1576}
1577
1578void
1579aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1580 ALIAS:
1581 aio_readlink = EIO_READLINK
1582 aio_realpath = EIO_REALPATH
1583 PPCODE:
1584{
1585 dREQ;
1586
1587 req->type = ix;
1588 req_set_path1 (req, pathname);
1704 1589
1705 REQ_SEND; 1590 REQ_SEND;
1706} 1591}
1707 1592
1708void 1593void
1594aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1595 PPCODE:
1596{
1597 int ifd = s_fileno_croak (in_fh , 0);
1598 int ofd = s_fileno_croak (out_fh, 1);
1599 dREQ;
1600
1601 req->type = EIO_SENDFILE;
1602 req->sv1 = newSVsv (out_fh);
1603 req->int1 = ofd;
1604 req->sv2 = newSVsv (in_fh);
1605 req->int2 = ifd;
1606 req->offs = in_offset;
1607 req->size = length;
1608
1609 REQ_SEND;
1610}
1611
1612void
1613aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1614 PPCODE:
1615{
1616 int fd = s_fileno_croak (fh, 0);
1617 dREQ;
1618
1619 req->type = EIO_READAHEAD;
1620 req->sv1 = newSVsv (fh);
1621 req->int1 = fd;
1622 req->offs = offset;
1623 req->size = length;
1624
1625 REQ_SEND;
1626}
1627
1628void
1629aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1630 ALIAS:
1631 aio_stat = EIO_STAT
1632 aio_lstat = EIO_LSTAT
1633 aio_statvfs = EIO_STATVFS
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1639
1640 REQ_SEND;
1641}
1642
1643void
1644st_xtime ()
1645 ALIAS:
1646 st_atime = 1
1647 st_mtime = 2
1648 st_ctime = 4
1649 st_xtime = 7
1650 PPCODE:
1651 EXTEND (SP, 3);
1652 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1653 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1654 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1655
1656void
1657st_xtimensec ()
1658 ALIAS:
1659 st_atimensec = 1
1660 st_mtimensec = 2
1661 st_ctimensec = 4
1662 st_xtimensec = 7
1663 PPCODE:
1664 EXTEND (SP, 3);
1665 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1666 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1667 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1668
1669UV
1670major (UV dev)
1671 ALIAS:
1672 minor = 1
1673 CODE:
1674 RETVAL = ix ? minor (dev) : major (dev);
1675 OUTPUT:
1676 RETVAL
1677
1678UV
1679makedev (UV maj, UV min)
1680 CODE:
1681 RETVAL = makedev (maj, min);
1682 OUTPUT:
1683 RETVAL
1684
1685void
1709aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1686aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1710 PPCODE: 1687 PPCODE:
1711{ 1688{
1712 dREQ; 1689 dREQ;
1713 1690
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1691 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1692 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1693 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1717
1718 if (SvPOK (fh_or_path))
1719 {
1720 req->type = REQ_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 }
1723 else
1724 {
1725 req->type = REQ_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 }
1728 1694
1729 REQ_SEND; 1695 REQ_SEND;
1730} 1696}
1731 1697
1732void 1698void
1733aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1699aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1734 PPCODE: 1700 PPCODE:
1735{ 1701{
1736 dREQ; 1702 dREQ;
1737 1703
1738 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1704 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1705 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1741 if (SvPOK (fh_or_path))
1742 {
1743 req->type = REQ_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 }
1746 else
1747 {
1748 req->type = REQ_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 }
1751 1706
1752 REQ_SEND; 1707 REQ_SEND;
1753} 1708}
1754 1709
1755void 1710void
1756aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1711aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1757 PPCODE: 1712 PPCODE:
1758{ 1713{
1759 dREQ; 1714 dREQ;
1760 1715
1761 req->mode = mode; 1716 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1717 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1763
1764 if (SvPOK (fh_or_path))
1765 {
1766 req->type = REQ_CHMOD;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 }
1769 else
1770 {
1771 req->type = REQ_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 }
1774 1718
1775 REQ_SEND; 1719 REQ_SEND;
1776} 1720}
1777 1721
1778void 1722void
1779aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1723aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1780 PPCODE: 1724 PPCODE:
1781{ 1725{
1782 dREQ; 1726 dREQ;
1783 1727
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1728 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1729 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1730 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1787
1788 if (SvPOK (fh_or_path))
1789 {
1790 req->type = REQ_CHOWN;
1791 req->ptr1 = SvPVbyte_nolen (req->sv1);
1792 }
1793 else
1794 {
1795 req->type = REQ_FCHOWN;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1797 }
1798 1731
1799 REQ_SEND; 1732 REQ_SEND;
1800} 1733}
1801 1734
1802void 1735void
1736aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = EIO_READDIR;
1742 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1743
1744 if (flags & EIO_READDIR_DENTS)
1745 req->int1 |= EIO_READDIR_CUSTOM2;
1746
1747 req_set_path1 (req, pathname);
1748
1749 REQ_SEND;
1750}
1751
1752void
1753aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1754 PPCODE:
1755{
1756 dREQ;
1757
1758 req->type = EIO_MKDIR;
1759 req->int2 = mode;
1760 req_set_path1 (req, pathname);
1761
1762 REQ_SEND;
1763}
1764
1765void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1766aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1804 ALIAS: 1767 ALIAS:
1805 aio_unlink = REQ_UNLINK 1768 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1769 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1770 aio_readdir = EIO_READDIR
1808 PPCODE: 1771 PPCODE:
1809{ 1772{
1810 dREQ; 1773 dREQ;
1811 1774
1812 req->type = ix; 1775 req->type = ix;
1813 req->sv1 = newSVsv (pathname); 1776 req_set_path1 (req, pathname);
1814 req->ptr1 = SvPVbyte_nolen (req->sv1);
1815 1777
1816 REQ_SEND; 1778 REQ_SEND;
1817} 1779}
1818 1780
1819void 1781void
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1821 PPCODE:
1822{
1823 dREQ;
1824
1825 req->type = REQ_MKDIR;
1826 req->sv1 = newSVsv (pathname);
1827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1828 req->mode = mode;
1829
1830 REQ_SEND;
1831}
1832
1833void
1834aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1782aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1835 ALIAS: 1783 ALIAS:
1836 aio_link = REQ_LINK 1784 aio_link = EIO_LINK
1837 aio_symlink = REQ_SYMLINK 1785 aio_symlink = EIO_SYMLINK
1838 aio_rename = REQ_RENAME 1786 aio_rename = EIO_RENAME
1839 PPCODE: 1787 PPCODE:
1840{ 1788{
1789 eio_wd wd2 = 0;
1841 dREQ; 1790 dREQ;
1842 1791
1843 req->type = ix; 1792 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1793 req_set_path1 (req, oldpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1794 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1846 req->sv1 = newSVsv (newpath); 1795 req->int3 = (long)wd2;
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1796
1849 REQ_SEND; 1797 REQ_SEND;
1850} 1798}
1851 1799
1852void 1800void
1853aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1801aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1854 PPCODE: 1802 PPCODE:
1855{ 1803{
1804 eio_wd wd2 = 0;
1856 dREQ; 1805 dREQ;
1857 1806
1858 req->type = REQ_MKNOD; 1807 req->type = EIO_RENAME;
1859 req->sv1 = newSVsv (pathname); 1808 req_set_path1 (req, oldpath);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1809 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1861 req->mode = (mode_t)mode; 1810 req->int2 = flags;
1862 req->offs = dev; 1811 req->int3 = (long)wd2;
1863 1812
1864 REQ_SEND; 1813 REQ_SEND;
1865} 1814}
1866 1815
1867void 1816void
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1817aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1869 PPCODE: 1818 PPCODE:
1870{ 1819{
1871 dREQ; 1820 dREQ;
1821
1822 req->type = EIO_MKNOD;
1823 req->int2 = (mode_t)mode;
1824 req->offs = dev;
1825 req_set_path1 (req, pathname);
1826
1827 REQ_SEND;
1828}
1872 1829
1830void
1831aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1832 ALIAS:
1833 aio_mtouch = EIO_MTOUCH
1834 aio_msync = EIO_MSYNC
1835 PPCODE:
1836{
1837 STRLEN svlen;
1838 char *svptr = SvPVbyte (data, svlen);
1839 UV len = SvUV (length);
1840
1841 if (flags < 0)
1842 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1843
1844 if (offset < 0)
1845 offset += svlen;
1846
1847 if (offset < 0 || offset > svlen)
1848 croak ("offset outside of scalar");
1849
1850 if (!SvOK (length) || len + offset > svlen)
1851 len = svlen - offset;
1852
1853 {
1854 dREQ;
1855
1856 req->type = ix;
1857 req->sv2 = SvREFCNT_inc (data);
1858 req->ptr2 = (char *)svptr + offset;
1859 req->size = len;
1860 req->int1 = flags;
1861
1862 REQ_SEND;
1863 }
1864}
1865
1866void
1867aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1868 PPCODE:
1869{
1870 STRLEN svlen;
1871 char *svptr = SvPVbyte (data, svlen);
1872 UV len = SvUV (length);
1873
1874 if (offset < 0)
1875 offset += svlen;
1876
1877 if (offset < 0 || offset > svlen)
1878 croak ("offset outside of scalar");
1879
1880 if (!SvOK (length) || len + offset > svlen)
1881 len = svlen - offset;
1882
1883 {
1884 dREQ;
1885
1886 req->type = EIO_MLOCK;
1887 req->sv2 = SvREFCNT_inc (data);
1888 req->ptr2 = (char *)svptr + offset;
1889 req->size = len;
1890
1891 REQ_SEND;
1892 }
1893}
1894
1895void
1896aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = EIO_MLOCKALL;
1902 req->int1 = flags;
1903
1904 REQ_SEND;
1905}
1906
1907void
1908aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1909 PPCODE:
1910{
1911 int fd = s_fileno_croak (fh, 0);
1912 dREQ;
1913
1914 req->type = EIO_CUSTOM;
1915 req->sv1 = newSVsv (fh);
1916 req->int1 = fd;
1917
1918 req->feed = fiemap;
1919#if HAVE_FIEMAP
1920 /* keep our fingers crossed that the next two types are 64 bit */
1921 req->offs = start;
1922 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1923 req->int2 = flags;
1924 req->int3 = SvOK (count) ? SvIV (count) : -1;
1925#endif
1926
1927 REQ_SEND;
1928}
1929
1930void
1931aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1932 PPCODE:
1933{
1934 char *svptr = 0;
1935
1936 sv_clear_foreign (data);
1937
1938 if (length) /* known length, directly read into scalar */
1939 {
1940 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1941 svptr = sv_grow (data, length + 1);
1942 else if (SvCUR (data) < length)
1943 croak ("length outside of scalar, and cannot grow");
1944 else
1945 svptr = SvPVbyte_nolen (data);
1946 }
1947
1948 {
1949 dREQ;
1950
1951 req->type = EIO_SLURP;
1952 req_set_path1 (req, pathname);
1953 req->offs = offset;
1954 req->size = length;
1955 req->sv2 = SvREFCNT_inc (data);
1956 req->ptr2 = svptr;
1957
1958 if (!SvREADONLY (data))
1959 {
1960 SvREADONLY_on (data);
1961 req->flags |= FLAG_SV2_RO_OFF;
1962 }
1963
1964 REQ_SEND;
1965 }
1966}
1967
1968void
1969aio_busy (double delay, SV *callback = &PL_sv_undef)
1970 PPCODE:
1971{
1972 dREQ;
1973
1873 req->type = REQ_BUSY; 1974 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1975 req->nv1 = delay < 0. ? 0. : delay;
1875 1976
1876 REQ_SEND; 1977 REQ_SEND;
1877} 1978}
1878 1979
1879void 1980void
1880aio_group (SV *callback=&PL_sv_undef) 1981aio_group (SV *callback = &PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1982 PPCODE:
1883{ 1983{
1884 dREQ; 1984 dREQ;
1885 1985
1886 req->type = REQ_GROUP; 1986 req->type = EIO_GROUP;
1887 1987
1988 PUTBACK;
1888 req_send (req); 1989 req_submit (req);
1990 SPAGAIN;
1991
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1992 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1993}
1891 1994
1892void 1995void
1893aio_nop (SV *callback=&PL_sv_undef) 1996aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS: 1997 ALIAS:
1895 aio_nop = REQ_NOP 1998 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1999 aio_sync = EIO_SYNC
1897 PPCODE: 2000 PPCODE:
1898{ 2001{
1899 dREQ; 2002 dREQ;
1900 2003
1901 req->type = ix; 2004 req->type = ix;
1902 2005
1903 REQ_SEND; 2006 REQ_SEND;
1904} 2007}
1905 2008
1906int 2009int
1907aioreq_pri (int pri = 0) 2010aioreq_pri (int pri = NO_INIT)
1908 PROTOTYPE: ;$
1909 CODE: 2011 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 2012 RETVAL = next_pri;
1911 if (items > 0) 2013 if (items > 0)
1912 { 2014 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 2015 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 2016 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 2017 next_pri = pri;
1916 } 2018 }
1917 OUTPUT: 2019 OUTPUT:
1918 RETVAL 2020 RETVAL
1919 2021
1920void 2022void
1921aioreq_nice (int nice = 0) 2023aioreq_nice (int nice = 0)
1922 CODE: 2024 CODE:
1923 nice = next_pri - nice; 2025 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 2026 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 2027 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 2028 next_pri = nice;
1927 2029
1928void 2030void
1929flush () 2031flush ()
1930 PROTOTYPE:
1931 CODE: 2032 CODE:
1932 while (nreqs) 2033 while (eio_nreqs ())
1933 { 2034 {
1934 poll_wait (); 2035 poll_wait ();
1935 poll_cb (); 2036 poll_cb ();
1936 } 2037 }
1937 2038
1938int 2039int
1939poll() 2040poll ()
1940 PROTOTYPE:
1941 CODE: 2041 CODE:
1942 poll_wait (); 2042 poll_wait ();
1943 RETVAL = poll_cb (); 2043 RETVAL = poll_cb ();
1944 OUTPUT: 2044 OUTPUT:
1945 RETVAL 2045 RETVAL
1946 2046
1947int 2047int
1948poll_fileno() 2048poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 2049 CODE:
1951 RETVAL = respipe [0]; 2050 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 2051 OUTPUT:
1953 RETVAL 2052 RETVAL
1954 2053
1955int 2054int
1956poll_cb(...) 2055poll_cb (...)
1957 PROTOTYPE: 2056 PROTOTYPE:
1958 CODE: 2057 CODE:
1959 RETVAL = poll_cb (); 2058 RETVAL = poll_cb ();
1960 OUTPUT: 2059 OUTPUT:
1961 RETVAL 2060 RETVAL
1962 2061
1963void 2062void
1964poll_wait() 2063poll_wait ()
1965 PROTOTYPE:
1966 CODE: 2064 CODE:
1967 poll_wait (); 2065 poll_wait ();
1968 2066
1969void
1970setsig (int signum = SIGIO)
1971 PROTOTYPE: ;$
1972 CODE:
1973{
1974 if (block_sig_level)
1975 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1976
1977 X_LOCK (reslock);
1978 main_tid = pthread_self ();
1979 main_sig = signum;
1980 X_UNLOCK (reslock);
1981
1982 if (main_sig && npending)
1983 pthread_kill (main_tid, main_sig);
1984}
1985
1986void
1987aio_block (SV *cb)
1988 PROTOTYPE: &
1989 PPCODE:
1990{
1991 int count;
1992
1993 block_sig ();
1994 PUSHMARK (SP);
1995 PUTBACK;
1996 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1997 SPAGAIN;
1998 unblock_sig ();
1999
2000 if (SvTRUE (ERRSV))
2001 croak (0);
2002
2003 XSRETURN (count);
2004}
2005
2006int 2067int
2007nreqs() 2068nreqs ()
2008 PROTOTYPE:
2009 CODE: 2069 CODE:
2010 RETVAL = nreqs; 2070 RETVAL = eio_nreqs ();
2011 OUTPUT: 2071 OUTPUT:
2012 RETVAL 2072 RETVAL
2013 2073
2014int 2074int
2015nready() 2075nready ()
2016 PROTOTYPE:
2017 CODE: 2076 CODE:
2018 RETVAL = get_nready (); 2077 RETVAL = eio_nready ();
2019 OUTPUT: 2078 OUTPUT:
2020 RETVAL 2079 RETVAL
2021 2080
2022int 2081int
2023npending() 2082npending ()
2024 PROTOTYPE:
2025 CODE: 2083 CODE:
2026 RETVAL = get_npending (); 2084 RETVAL = eio_npending ();
2027 OUTPUT: 2085 OUTPUT:
2028 RETVAL 2086 RETVAL
2029 2087
2030int 2088int
2031nthreads() 2089nthreads ()
2032 PROTOTYPE:
2033 CODE: 2090 CODE:
2034 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2091 RETVAL = eio_nthreads ();
2035 RETVAL = started;
2036 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2037 OUTPUT: 2092 OUTPUT:
2038 RETVAL 2093 RETVAL
2039 2094
2095int
2096fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2097 CODE:
2098 RETVAL = posix_fadvise (fh, offset, length, advice);
2099 OUTPUT:
2100 RETVAL
2101
2102IV
2103sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2104 CODE:
2105 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2106 OUTPUT:
2107 RETVAL
2108
2109void
2110mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2111 PPCODE:
2112 sv_clear_foreign (scalar);
2113{
2114 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2115 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2116 if (addr == (void *)-1)
2117 XSRETURN_NO;
2118
2119 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2120
2121 if (!(prot & PROT_WRITE))
2122 SvREADONLY_on (scalar);
2123
2124 XSRETURN_YES;
2125}
2126
2127void
2128munmap (SV *scalar)
2129 CODE:
2130 sv_clear_foreign (scalar);
2131
2132SV *
2133mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2134 CODE:
2135{
2136 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2137 void *new;
2138
2139 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2140 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2141
2142 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2143
2144 RETVAL = &PL_sv_no;
2145
2146 if (new != (void *)-1)
2147 {
2148 RETVAL = new == (void *)mg->mg_ptr
2149 ? newSVpvn ("0 but true", 10)
2150 : &PL_sv_yes;
2151
2152 mg->mg_ptr = (char *)new;
2153 mg->mg_obj = (SV *)new_length;
2154
2155 SvPVX (scalar) = mg->mg_ptr;
2156 SvCUR_set (scalar, new_length);
2157 }
2158}
2159 OUTPUT:
2160 RETVAL
2161
2162int
2163madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2164 ALIAS:
2165 mprotect = 1
2166 CODE:
2167{
2168 STRLEN svlen;
2169 void *addr = SvPVbyte (scalar, svlen);
2170 STRLEN len = SvUV (length);
2171
2172 if (offset < 0)
2173 offset += svlen;
2174
2175 if (offset < 0 || offset > svlen)
2176 croak ("offset outside of scalar");
2177
2178 if (!SvOK (length) || len + offset > svlen)
2179 len = svlen - offset;
2180
2181 addr = (void *)(((intptr_t)addr) + offset);
2182 eio_page_align (&addr, &len);
2183
2184 switch (ix)
2185 {
2186 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2187 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2188 }
2189}
2190 OUTPUT:
2191 RETVAL
2192
2193int
2194munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2195 CODE:
2196{
2197 STRLEN svlen;
2198 void *addr = SvPVbyte (scalar, svlen);
2199 size_t len = SvUV (length);
2200
2201 if (offset < 0)
2202 offset += svlen;
2203
2204 if (offset < 0 || offset > svlen)
2205 croak ("offset outside of scalar");
2206
2207 if (!SvOK (length) || len + offset > svlen)
2208 len = svlen - offset;
2209
2210 addr = (void *)(((intptr_t)addr) + offset);
2211 eio_page_align (&addr, &len);
2212#if _POSIX_MEMLOCK_RANGE
2213 RETVAL = munlock (addr, len);
2214#else
2215 RETVAL = EIO_ENOSYS ();
2216#endif
2217}
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222munlockall ()
2223 CODE:
2224#if _POSIX_MEMLOCK
2225 munlockall ();
2226#else
2227 RETVAL = EIO_ENOSYS ();
2228#endif
2229 OUTPUT:
2230 RETVAL
2231
2232int
2233splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2234 CODE:
2235{
2236#if HAVE_LINUX_SPLICE
2237 loff_t off_in_, off_out_;
2238 RETVAL = splice (
2239 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2240 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2241 length, flags
2242 );
2243#else
2244 RETVAL = EIO_ENOSYS ();
2245#endif
2246}
2247 OUTPUT:
2248 RETVAL
2249
2250int
2251tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2252 CODE:
2253#if HAVE_LINUX_SPLICE
2254 RETVAL = tee (rfh, wfh, length, flags);
2255#else
2256 RETVAL = EIO_ENOSYS ();
2257#endif
2258 OUTPUT:
2259 RETVAL
2260
2261int
2262pipesize (aio_rfd rfh, int new_size = -1)
2263 PROTOTYPE: $;$
2264 CODE:
2265#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2266 if (new_size >= 0)
2267 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2268 else
2269 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2270#else
2271 errno = ENOSYS;
2272 RETVAL = -1;
2273#endif
2274 OUTPUT:
2275 RETVAL
2276
2277void
2278pipe2 (int flags = 0)
2279 PROTOTYPE: ;$
2280 PPCODE:
2281{
2282 int fd[2];
2283 int res;
2284
2285 if (flags)
2286#if HAVE_PIPE2
2287 res = pipe2 (fd, flags);
2288#else
2289 res = (errno = ENOSYS, -1);
2290#endif
2291 else
2292 res = pipe (fd);
2293
2294 if (!res)
2295 {
2296 EXTEND (SP, 2);
2297 PUSHs (newmortalFH (fd[0], O_RDONLY));
2298 PUSHs (newmortalFH (fd[1], O_WRONLY));
2299 }
2300}
2301
2302void
2303eventfd (unsigned int initval = 0, int flags = 0)
2304 PPCODE:
2305{
2306 int fd;
2307#if HAVE_EVENTFD
2308 fd = eventfd (initval, flags);
2309#else
2310 fd = (errno = ENOSYS, -1);
2311#endif
2312
2313 XPUSHs (newmortalFH (fd, O_RDWR));
2314}
2315
2316void
2317timerfd_create (int clockid, int flags = 0)
2318 PPCODE:
2319{
2320 int fd;
2321#if HAVE_TIMERFD
2322 fd = timerfd_create (clockid, flags);
2323#else
2324 fd = (errno = ENOSYS, -1);
2325#endif
2326
2327 XPUSHs (newmortalFH (fd, O_RDWR));
2328}
2329
2330void
2331timerfd_settime (SV *fh, int flags, NV interval, NV value)
2332 PPCODE:
2333{
2334 int fd = s_fileno_croak (fh, 0);
2335#if HAVE_TIMERFD
2336 int res;
2337 struct itimerspec its, ots;
2338
2339 ts_set (&its.it_interval, interval);
2340 ts_set (&its.it_value , value);
2341 res = timerfd_settime (fd, flags, &its, &ots);
2342
2343 if (!res)
2344 {
2345 EXTEND (SP, 2);
2346 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2347 PUSHs (newSVnv (ts_get (&ots.it_value)));
2348 }
2349#else
2350 errno = ENOSYS;
2351#endif
2352}
2353
2354void
2355timerfd_gettime (SV *fh)
2356 PPCODE:
2357{
2358 int fd = s_fileno_croak (fh, 0);
2359#if HAVE_TIMERFD
2360 int res;
2361 struct itimerspec ots;
2362 res = timerfd_gettime (fd, &ots);
2363
2364 if (!res)
2365 {
2366 EXTEND (SP, 2);
2367 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2368 PUSHs (newSVnv (ts_get (&ots.it_value)));
2369 }
2370#else
2371 errno = ENOSYS;
2372#endif
2373}
2374
2375UV
2376get_fdlimit ()
2377 CODE:
2378#if HAVE_RLIMITS
2379 struct rlimit rl;
2380 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2381 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2382#endif
2383 XSRETURN_UNDEF;
2384 OUTPUT:
2385 RETVAL
2386
2387void
2388min_fdlimit (UV limit = 0x7fffffffU)
2389 CODE:
2390{
2391#if HAVE_RLIMITS
2392 struct rlimit rl;
2393 rlim_t orig_rlim_max;
2394 UV bit;
2395
2396 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2397 goto fail;
2398
2399 if (rl.rlim_cur == RLIM_INFINITY)
2400 XSRETURN_YES;
2401
2402 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2403
2404 if (rl.rlim_cur < limit)
2405 {
2406 rl.rlim_cur = limit;
2407
2408 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2409 rl.rlim_max = rl.rlim_cur;
2410 }
2411
2412 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2413 XSRETURN_YES;
2414
2415 if (errno == EPERM)
2416 {
2417 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2418 /* our limit overflows a system-wide limit */
2419 /* try an adaptive algorithm, but do not lower the hardlimit */
2420 rl.rlim_max = 0;
2421 for (bit = 0x40000000U; bit; bit >>= 1)
2422 {
2423 rl.rlim_max |= bit;
2424 rl.rlim_cur = rl.rlim_max;
2425
2426 /* nevr decrease the hard limit */
2427 if (rl.rlim_max < orig_rlim_max)
2428 break;
2429
2430 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2431 rl.rlim_max &= ~bit; /* too high, remove bit again */
2432 }
2433
2434 /* now, raise the soft limit to the max permitted */
2435 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2436 {
2437 rl.rlim_cur = rl.rlim_max;
2438 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2439 errno = EPERM;
2440 }
2441 }
2442#endif
2443 fail:
2444 XSRETURN_UNDEF;
2445}
2446
2447void _on_next_submit (SV *cb)
2448 CODE:
2449 SvREFCNT_dec (on_next_submit);
2450 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2451
2040PROTOTYPES: DISABLE 2452PROTOTYPES: DISABLE
2453
2454MODULE = IO::AIO PACKAGE = IO::AIO::WD
2455
2456BOOT:
2457{
2458 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2459 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2460}
2461
2462void
2463DESTROY (SV *self)
2464 CODE:
2465{
2466 aio_wd wd = SvAIO_WD (self);
2467#if HAVE_AT
2468 {
2469 SV *callback = &PL_sv_undef;
2470 dREQ; /* clobbers next_pri :/ */
2471 next_pri = req->pri; /* restore next_pri */
2472 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2473 req->type = EIO_WD_CLOSE;
2474 req->wd = wd;
2475 REQ_SEND;
2476 }
2477#else
2478 eio_wd_close_sync (wd);
2479#endif
2480}
2041 2481
2042MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2482MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2043 2483
2044void 2484void
2045cancel (aio_req_ornot req) 2485cancel (aio_req_ornot req)
2046 CODE: 2486 CODE:
2047 req_cancel (req); 2487 eio_cancel (req);
2048 2488
2049void 2489void
2050cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2490cb (aio_req_ornot req, SV *callback = NO_INIT)
2051 CODE: 2491 PPCODE:
2492{
2493 if (GIMME_V != G_VOID)
2494 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2495
2496 if (items > 1)
2497 {
2498 SV *cb_cv = get_cb (callback);
2499
2052 SvREFCNT_dec (req->callback); 2500 SvREFCNT_dec (req->callback);
2053 req->callback = newSVsv (callback); 2501 req->callback = SvREFCNT_inc (cb_cv);
2502 }
2503}
2054 2504
2055MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2505MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2056 2506
2057void 2507void
2058add (aio_req grp, ...) 2508add (aio_req grp, ...)
2059 PPCODE: 2509 PPCODE:
2060{ 2510{
2061 int i; 2511 int i;
2062 aio_req req;
2063
2064 if (main_sig && !block_sig_level)
2065 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2066 2512
2067 if (grp->int1 == 2) 2513 if (grp->int1 == 2)
2068 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2514 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2069 2515
2070 for (i = 1; i < items; ++i ) 2516 for (i = 1; i < items; ++i )
2071 { 2517 {
2518 aio_req req;
2519
2072 if (GIMME_V != G_VOID) 2520 if (GIMME_V != G_VOID)
2073 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2521 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2074 2522
2075 req = SvAIO_REQ (ST (i)); 2523 req = SvAIO_REQ (ST (i));
2076 2524
2077 if (req) 2525 if (req)
2078 { 2526 eio_grp_add (grp, req);
2079 ++grp->size;
2080 req->grp = grp;
2081
2082 req->grp_prev = 0;
2083 req->grp_next = grp->grp_first;
2084
2085 if (grp->grp_first)
2086 grp->grp_first->grp_prev = req;
2087
2088 grp->grp_first = req;
2089 }
2090 } 2527 }
2091} 2528}
2092 2529
2093void 2530void
2094cancel_subs (aio_req_ornot req) 2531cancel_subs (aio_req_ornot req)
… …
2103 AV *av; 2540 AV *av;
2104 2541
2105 grp->errorno = errno; 2542 grp->errorno = errno;
2106 2543
2107 av = newAV (); 2544 av = newAV ();
2545 av_extend (av, items - 1);
2108 2546
2109 for (i = 1; i < items; ++i ) 2547 for (i = 1; i < items; ++i )
2110 av_push (av, newSVsv (ST (i))); 2548 av_push (av, newSVsv (ST (i)));
2111 2549
2112 SvREFCNT_dec (grp->sv1); 2550 SvREFCNT_dec (grp->sv1);
… …
2119 grp->errorno = errorno; 2557 grp->errorno = errorno;
2120 2558
2121void 2559void
2122limit (aio_req grp, int limit) 2560limit (aio_req grp, int limit)
2123 CODE: 2561 CODE:
2124 grp->int2 = limit; 2562 eio_grp_limit (grp, limit);
2125 aio_grp_feed (grp);
2126 2563
2127void 2564void
2128feed (aio_req grp, SV *callback=&PL_sv_undef) 2565feed (aio_req grp, SV *callback = &PL_sv_undef)
2129 CODE: 2566 CODE:
2130{ 2567{
2131 SvREFCNT_dec (grp->sv2); 2568 SvREFCNT_dec (grp->sv2);
2132 grp->sv2 = newSVsv (callback); 2569 grp->sv2 = newSVsv (callback);
2570 grp->feed = aio_grp_feed;
2133 2571
2134 if (grp->int2 <= 0) 2572 if (grp->int2 <= 0)
2135 grp->int2 = 2; 2573 grp->int2 = 2;
2136 2574
2137 aio_grp_feed (grp); 2575 eio_grp_limit (grp, grp->int2);
2138} 2576}
2139 2577

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